Home / 3,901.74-5,386.23-2,957.70

Finding the Fourth Proportional to 3,901.74, 5,386.23 and 2,957.70

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Solution

The fourth proportional to 3,901.74, 5,386.23 and 2,957.70 is: 4,083.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.74 : 5,386.23 = 2,957.70 : x
  2. Step 2: Convert to fraction form
    3,901.74/5,386.23 = 2,957.70/x
  3. Step 3: Cross multiply
    3,901.74x = 5,386.23 × 2,957.70
  4. Step 4: Simplify right side
    3,901.74x = 15,930,852.47
  5. Step 5: Solve for x
    x = 15,930,852.47/3,901.74
  6. Step 6: Final answer
    x = 4,083.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.